1)Preheat the oven to 375°F with a rack in the center position. For the glaze, combine the soy sauce, sake, mirin, ginger, garlic, and sugar in a small saucepan and boil until reduced to ½ cup, about 15 minutes. Transfer to a bowl and let cool to room temperature.

2)Toss the wings with the oil and salt in a bowl and transfer to a rimmed baking sheet. Bake for 30 minutes, then brush generously with the glaze. Bake for 15 minutes, basting and turning every 5 minutes until the wings look caramelized.